topic Re: Combine multiple search in Splunk Search

How to combine multiple search

msg4sunil — Mon, 21 Mar 2022 17:39:48 GMT

How do combine the below 2 searches into one?

1. * orderid|stats count by id

returns something like

2022-03-21T00:10:16,999Z ...INFO [thread_id=12349, id=VU53ZQCTTMLPG, .....
2022-03-21T00:10:16,995Z....INFO [thread_id=549, id=F2PAC6ITNX6O3,

2. Based on the above response, I need to query as below after fetching the "id". Note, "id's would vary for different orderid and the number of "id"'s would also vary

id IN ("VU53ZQCTTMLPG","F2PAC6ITNX6O3")

Thank you

Re: Combine multiple search

bowesmana — Mon, 21 Mar 2022 00:55:53 GMT

There are a number of ways to do this, with subsearches, joins or aggregations, but it's not easy to give you an absolute solution.

The most obvious example from your description is the subsearch, which would be something like

Your second search [ search your first search | stats count by id | fields id ]

which would pass the list of ids in the subsearch to the outer search which is effectively doing

(id1 OR id=2 OR id=3..)

as part of the outer search

You can use other techniques, such as searching for all the data in a single search and then manipulating it with eval/stats to get to your desired output, but need more info on that.

join command is an option, but should rarely be the first choice, as 'join' has limitations and is not really the way to do this sort of task in Splunk world

Re: Combine multiple search

msg4sunil — Mon, 21 Mar 2022 01:20:58 GMT

@bowesmana , can you please give one example? The below doesnt work.

index=* id IN [index=* "985be6370637"| fields id]

Re: Combine multiple search

bowesmana — Mon, 21 Mar 2022 01:32:46 GMT

@msg4sunil

index=* [ search index=* "985be6370637" | stats count by id | fields id ]

It is not good practice to use index=* - admins do not like users who cast a wide search net - always be as specific as possible when making your search - particularly in this case, you are making two searches.

Re: Combine multiple search

msg4sunil — Mon, 21 Mar 2022 01:56:03 GMT

Thank you very much @bowesmana for timely help. Sure, will make the index name as explicit instead of using *.

Thanks again.